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Magnetic suspension-based detection apparatus and detection method for defects of parts

A detection device and detection method technology, applied in the direction of measuring device, material magnetic variable, material analysis through electromagnetic means, etc., can solve the problems of high detection cost and cumbersome detection process

Active Publication Date: 2016-05-04
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The applicable detection method is as described above, so there are disadvantages of cumbersome detection process and high detection cost

Method used

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  • Magnetic suspension-based detection apparatus and detection method for defects of parts
  • Magnetic suspension-based detection apparatus and detection method for defects of parts
  • Magnetic suspension-based detection apparatus and detection method for defects of parts

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Embodiment Construction

[0048] In order to make the present invention more clearly understood, the present invention will be further described below according to specific examples and accompanying drawings of the present invention.

[0049] Such as figure 1 and figure 2 Shown is the principle diagram of the magnetic levitation device of the present invention, including a magnet 1, a magnet 4, a medium solution 2, a sample 3, and a detection container 5. The magnet 1 and the magnet 4 are coaxially arranged in the vertical direction, and the same poles are oppositely arranged, figure 1 In the above, the N poles of the two magnets are arranged oppositely, both facing the detection container.

[0050] The detection container 5 is a transparent container with an upper opening, generally made of materials such as glass and plastic.

[0051] The magnetic induction of magnet 1 and magnet 4 on the surface of the N pole is the same, generally 0.3T-0.6T. In this embodiment, the magnetic induction of magnet ...

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Abstract

The invention discloses a magnetic suspension-based detection apparatus and detection method for defects of parts. The detection apparatus comprises two magnets coaxially arranged along a vertical direction and a detection container arranged between the two magnets and provided with a sample feeding inlet, wherein the same poles of the two magnets are arranged face to face, magnetic induction intensities on the surfaces of the magnetic poles are same, and the detection container is filled with a paramagnetic medium solution. The detection apparatus is applicable to a sample with a cross section of a centrosymmetric structure, wherein the height of the sample is no more than 3 / 4 of the greatest diameter of the cross section and the magnetic susceptibility of the sample is less than 1 * 10<-5>. Compared with the prior art, the invention has the following beneficial effects: the detection method is simple to operate and has no harsh requirements on an operator; the detection apparatus has a simple integral structure and low cost; detection results are easy to observe; detection sensitivity is high; and automation can be easily realized.

Description

technical field [0001] The invention belongs to the field of component defect detection, and in particular relates to a detection device and a detection method for a component defect based on magnetic levitation. Background technique [0002] Polymer materials are a class of widely used materials that permeate every corner of our production and life. Before artificially synthesizing polymer products, the application of polymer materials was mainly the direct use or simple processing of natural materials. It was not until the 1930s that the advancement of polymer science enabled the industrialization of synthetic polymers, and polymer materials entered a period of rapid development. Due to the diversification of its own raw material types and the diversity of molecular structures that can be obtained, synthetic polymer materials can obtain characteristics suitable for engineering applications. Generally speaking, compared with traditional engineering materials, polymer mate...

Claims

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Application Information

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IPC IPC(8): G01N27/82
CPCG01N27/825
Inventor 赵朋颉俊傅建中贺永
Owner ZHEJIANG UNIV
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